Healthspan > Lifespan
Modern medicine has successfully extended lifespan, but not always healthspan — the years lived in good health. Too often, we spend our last 15 years in a state of decline.
Optimizing longevity is not just to add years to our life, but also life to our years, by aiming for the 'rectangularization of the curve': maintaining optimal physical and cognitive performance for as long as possible, before a rapid but late decline.
Longevity is not a genetic fate (only 20-25%), it's an epigenetic skill (~75-80%) that can be learned. (lien)
Rectangularization of the longevity curve
Classic curve— Slow and painful decline
Singular curve— High and long plateau, rapid decline at the end
~25%
Genetics
Share of longevity determined by your genes
~75%
Epigenetics
Share modifiable by your lifestyle